DIN 2391 ST52 Seamless Pipes
GNEE specializes in the production of seamless steel tubes that meet EN specifications. DIN 2391 ST52 precision tubes have excellent mechanical properties and a wide range of applications. Combining the above advantages, we can provide products that best meet customer requirements.
DIN 2391 ST52 cold drawn tubes are composed of carbon, silicon, manganese, phosphorus and sulfur. Among them, the maximum carbon content is 0.22%, and the manganese content is the highest, which is 1.6%. As a low carbon steel tube DIN 2391 ST52 honed cylinder tube has similar machinability to low carbon steel grades.
DIN 2391 ST52 honed tubes are durable and can be used in high temperature applications. Seamless tubes can maintain their mechanical properties, such as high tensile strength, even under extreme conditions. DIN 2391 ST52 seamless tubes are mainly used in oil and gas pipelines, fluid transportation pipelines, boiler pipes and heat exchanger pipes.
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DIN 2391 ST 52 honed steel tubes Product specification
DIN 2391 ST 52 Seamless Pipe Chemical Composition Chart
| Standard | Grade | C | Si | Mn | P max | S max |
| DIN2391 | St 52 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 |
DIN 2391 ST 52 Seamless circular tubes Mechanical Characteristics
| Cold drawn(Mandatory) | Cold drawn(Soft) | Cold Drawn and Stress Release | Anneal | Normalizing | ||||||||
| BK1) | BKW1) | (BKS) | (GBK)1) | (NBK)1) | ||||||||
| Grade | Tensile | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation |
| N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | |
| St 52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490~630 | 355 | 22 |
DIN 2391 ST 52 Seamless cold drawn tube

Advantages of Choosing GNEE
Gnee has 14 steel production lines, 10 processing equipment for processing, bending, painting, heat treatment, cutting, drilling, beveling, tempering, surface treatment, complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
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FAQ
1.Q.What's your advantage?
A.Honest business with competitive price and professional service on export process.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
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